$109 Cheap Delta flights Louisville (SDF) to Houston (IAH)

View $109 flight on Wed, Oct 29, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$109 Cheap Delta flights Louisville (SDF) to Houston (IAH)

Prices were available within the past 7 days and start at $109 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 7 - Tue, Oct 14
SDF
Louisville
IAH
Houston
$217 Roundtrip, found 12 hours ago
$217
Roundtrip
found 12 hours ago
Select Delta flight, departing Tue, Oct 7 from Louisville to Houston, returning Tue, Oct 14, priced at $217 found 12 hours ago
Delta
Wed, Nov 12 - Sun, Nov 16
SDF
Louisville
IAH
Houston
$231 Roundtrip, found 10 hours ago
$231
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Nov 12 from Louisville to Houston, returning Sun, Nov 16, priced at $231 found 10 hours ago
Flights from Louisville (SDF) to Houston (IAH)
Origin airport
Louisville Intl.
Destination airport
George Bush Intercontinental
Airlines serving
American Airlines, Delta, Spirit Airlines, United
Popular airline
Spirit Airlines
Distance
788 mi
Average flight time
1 hour 29 mins

Frequently asked questions

How much is a Delta Air Lines flight from Louisville Intl. Airport (SDF) to George Bush Intercontinental Airport (IAH)?
Grab affordable round-trip Delta Air Lines flights from $217 from SDF to IAH by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $109 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SDF to IAH with Delta Air Lines?
November is one of the most affordable months to get away to Houston with Delta Air Lines. You could also find fantastic deals on return and one-way tickets in February.
What is the cheapest time to book flights from Louisville Intl. Airport (SDF) to George Bush Intercontinental Airport (IAH) with Delta Air Lines?
Look for cheap Delta Air Lines flights from Louisville Intl. Airport (SDF) to George Bush Intercontinental Airport (IAH) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Louisville Intl. Airport (SDF) to George Bush Intercontinental Airport (IAH)?
Use our "Nonstop" filter when browsing for direct Delta Air Lines flights from SDF to IAH. It's also a great way to compare other airlines servicing the same nonstop trip.
What is the earliest Delta Air Lines flight from SDF to IAH?
Sort your results by "Early Morning" and "Morning" to see the earliest departures from SDF to IAH. Leaving early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Houston?
George Bush Intercontinental Airport (IAH) is the main Houston hub for Delta Air Lines flights from Louisville Intl. Airport (SDF).
Why fly with Delta Air Lines from SDF to IAH?
With an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a favorite for many travelers heading from SDF to IAH. What's more, if you're a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Louisville Intl. Airport (SDF) to George Bush Intercontinental Airport (IAH)?
Depending on the type of fare you purchased, a fee typically applies if you cancel or reschedule your booking more than 24 hours after it's confirmed. To secure flexible plane tickets, select our "Changes included" and "No cancel fee" boxes when you search for flights. For additional information on canceling or modifying your reservation, visit "Trips," select your flight and click on "Manage Booking."

Explore a world of travel with Expedia

*Available to One Key members.